[away3d] Moving plane with camera.

[Valts Darznieks]

Hi!
I`m looking for best way to move plane accordingly to my camera
(http://ipic.lv/i4/bf441e2d/4f3f4988eb7b995.jpg)
*) sphere is static in center
*) camera moves around sphere
I need for plane to always be behind sphere no matter where I rotate
the camera.
If I inverse x,y,z of my camera that should be the center of my
plane ?
Could someone give me some pointers on how to achieve this?